@mixin flex() {
    display: -webkit-flex;
    display: flex;
    // display: -webkit-box;
    display: -moz-box;
    // display: -ms-flexbox;
}

@mixin flexv() {
    -webkit-box-orient: vertical;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
}

@mixin flex-1 {
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
}

@mixin flex-wrap {
    -webkit-flex-wrap: wrap;
    -moz-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-line: multiple;
}

@mixin flex-justify-start {
    -webkit-box-pack: start;
    -webkit-justify-content: flex-start;
    -ms-justify-content: flex-start;
    justify-content: flex-start;
}

@mixin flex-justify-end {
    -webkit-box-pack: end;
    -webkit-justify-content: flex-end;
    -ms-justify-content: flex-end;
    justify-content: flex-end;
}

@mixin flex-justify-between {
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -ms-justify-content: space-between;
    justify-content: space-between;
}

@mixin flex-justify-around {
    -webkit-box-pack: justify;
    -webkit-justify-content: space-around;
    -ms-justify-content: space-around;
    justify-content: space-around;
}

@mixin flex-justify-center {
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-justify-content: center;
    justify-content: center;
}

@mixin flex-align-start {
    -webkit-box-align: start;
    -webkit-align-items: flex-start;
    -ms-align-items: flex-start;
    align-items: flex-start;
}

@mixin flex-align-end {
    -webkit-box-align: end;
    -webkit-align-items: flex-end;
    -ms-align-items: flex-end;
    align-items: flex-end;
}

@mixin flex-align-baseline {
    -webkit-box-align: baseline;
    -webkit-align-items: baseline;
    -ms-align-items: baseline;
    align-items: baseline;
}

@mixin flex-align-stretch {
    -webkit-box-align: stretch;
    -webkit-align-items: stretch;
    -ms-align-items: stretch;
    align-items: stretch;
}

@mixin flex-align-center {
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-align-items: center;
    align-items: center;
}

@mixin flex-order($num) {
    box-order: $num;
    -webkit-box-order: $num;
    -moz-box-order: $num;
    order: $num;
    -webkit-order: $num;
}

